Electropneumatic channeling-machine.



A. H. GIBSON.

ELECTROPNEUMATIC CHANNELING MACHINE.

APPLICATION FILED SEPT-26.1912- Patented Sept. 18, 1917.

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A. H. GIBSON. v ELECTROPNEUMATIC CHANNELING MACHINE.

APPLICATION FILED SEPT- 26. I912- Patented Sept. 18, 1917.

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A. H. GJBSON. ELECTROPNEUMATIC CHANNELING MACHINE. APPLICATION HLED SEPT-26, 1912.

'1 240, 5 5 9 Patented Sept. 18 1917.

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A. H. GIBSON. ELECTROPNEUMATIC CHANNELING MACHINE.

APPLICATION FILED SEPT- 26,!912.

Patented Sept. 18, i917.

4 SHEETS-SHEET 4- UNITED STATES PATENT OFFICE.

ARTHUR H. GIBSON, OF EAS'ION, PENNSYLVANIA, ASSIGNOR.TO INGERSOLLRAND COMPANY, or NEW YORK, N. Y., AconPonATIoN or NEW JERSEY.

ELECTROPNEUMATIC QHANNELING-MAGHINE.

To all whom itmay concern:

Be it known that I, ARTHUR H. GIBsoN, a subject of the Crown of Great Britain, and resident of Easton, in thecounty of Northampton and State of Pennsylvania, have invented a new and useful Improvement in Electropneumatic Channeling-lvlachines, of which the following is a specification.

The objectof my invention is to provide certain improvements in the construction, form and arrangement of the several parts of an electro-pneumatic channeling machine whereby the same is materially simplified and its operation facilitated.

My invention includes the location of the pulsator between the percussive tool and motor and the provision of swinging telescopic piping between the tool and. pulsator.

It also includes the mounting of the tool and the pulsator in a fixed relationship on a base adjustable along the truck.

It also includes a manually controlled connection between the motor and tool whereby the tool is moved by the motor.

A practical embodiment of my invention is represented in the accompanying drawings, in which- Figure 1 represents the'machine in top plan,

Fig. 2 is a detail vertical transverse section taken in the plane of the line AA of Fig. 1,

Fig. 3 is a detail transverse vertical section taken in the plane of the line BB of Fig. 1,

.Fig. 1 is a detail section through one of the swinging telescoping pipes which connect the tool cylinder with the pulsator cylinder, r

Fig. 5 is a detail. horizontal section taken in the plane of the line CC of Fig. 7,

Fig. 6 is a detail horizontal section through the manuallycontrolled means for connecting and disconnecting the motor and truck wheels, I

Fig. 7 isa view in front elevation of the machine, and v Fig. Sis a'detail longitudinal central section through the percussive tool.

This invention is herein shown in connection with a track channeler in which a truck is provided for carrying the percus sive tool, the pulsator and the motor.

The truck 1 is provided with two axles Specification of Letters Patent. Patented Sept. 18, 191 7.

Application filed September 26, 1912.

Serial No. 722,476.

2 and 3, each axle having a pair of traction wheels 1 arranged to travel along the track 5.

A base 6 is adjustable along the truck 1, in the present instance byproviding the truck with two longitudinal undercut grooves 7', 8, within which the heads 9 of bolts 10 are located, said bolts extending upwardly through. the base 6 and having their endsprovided with nuts 11 which serve to clamp the base in any desired adjusted position along the, truck.

The percussive tool is herein shown as a channeling tool. Its cylinder is denoted by 12 and'it is fitted to slide in a shell guide 13 carried by a fixed frame let uprising from the base 6.

- The feed screw for the tool is .denoted by 15 and it is provided at its upper end with agear 16 frictionally clamped thereon which meshes with a gear 17 on the upperend of an intermediate shaft 18, the lower end of which shaft is seated in a suitable bearing 19 on the base 6. I

The feed screw 15 is engaged with the tool cylinder 12 and the rotation of the screw in one direction will move the tool toward its work and the rotation of the screw in its opposite direction will move the tool away from its work.

An electric motor 20 isfixedly mounted onthe adjustable base 6, the shaft 21 of which motor is provided with gear 22 which meshes with a gear 23 on the pulsator shaft 24:.

The pulsator which operates the tool is xedly mounted upon the adjustable base 6 between the motor and the tool. The pulsator cylinder 25 is connected to the tool cylinder 12 by swinging telescopic piping. In the present instance, a pair of swinging telescopic rigid pipes are provided connecting the opposite ends of the pulsator cylin- -der withthe'opposite ends of the tool cylinder. I Each of these pipes comprises a member 26 which is hingedto the tool cylinder and a member 27 which is hinged to the pulsator Scylinder, the member 26 telescopi'ngv within the member 27 thus permitting the movement of the tool toward and away from its work without disturbing'its operative connection with the pulsator,

The auxiliary shaft 18 is provided with two oppositely arranged bevel gears 28,29, having a sliding interlocked engagement with the said shaft and arranged to be brought into and out of engagement with a bevel gear 30 on the pulsator shaft 24. The arrangement of the parts is such that when both of the bevel gears 28, 29, are out of engagement with the bevel gear 30 no movement will be imparted to the feed screw 15, and that when one of the bevel gears on the shaft 18 is in engagement with the bevel gear 30 the feed screw will be rotated in a direction to move the tool toward its work and when the other bevel gear on the shaft 18 is in engagement with the 'bevelgear 3-0 the feed screw will be turned in a direc tion to move the tool away from its Work.

Manually operated means are employed for throwing these gears 28 and 29 into and out of operative position. In the present instance, two devices are employed, upon opposite sides of the tool. Each device comprises a crank shaft 31 having one arm 32 in engagement witha sleeve 33 connecting the gears 28 and 29 and another arm 34 provided with a handle 35.

The truck is driven in either direction from the motor asfollows :-An intermediate cross shaft 36 is mounted on the base 6, which shaft has a gear 37 meshing with a gear 38 on the pulsator shaft 24. A second intermediate cross shaft 39 is mounted in suitable bearings on the truck and it is provided at one end with a sprocket 40. A sprocket chain 41 runs over the sprocket 40 and also over a sprocket 42 on the end of the intermediate shaft 36. The intermediate shaft 39 is provided with a bevel gear 43 which meshes with two oppositely arranged bevel gears 44, 45, loosely mounted on a longitudinally arranged shaft 46 having gear connections 47, 48, with the axles '2 and 3 of the truck. The bevel gears 44, 45, form part of two friction clutches the sliding members 49, 50, being keyed to rotate with the shaft 46 and arranged to be interlocked with the friction members 51, 52, of the said bevel gears 44, 45.

These movable clutch members are connected to move together with a rod 53.

When desired, these clutches may be 0perated from either of two different points on the front of the machine as follows: Two short rock shafts 54 are mounted in the truck, each shaft being provided with an inner arm engaged with the rod53and an outer socket arm 56 for the reception of a removable hand lever 57..

By mounting the percussive tool and the pulsator in fixed lateral relationship, I am enabled to connect the pulsator and tool cylinder by a rigid telescoping piping hinged to the cylinders so as to permit the movement of the tool toward and away from its work. This fixed relationship between the pulsator and the tool cylinder also permits of the utilization of the pulsator shaft as a part of the driving connection between the motor and the tool. Furthermore, by the mounting of the motor, the pulsator and the tool cylinder all on the adjustable base, the

tool may be readily adjusted to different points along the truck without disturbing the driving connections between the motor and the pulsator and the tool. The connections may therefore be made more simple and effective.

Furthermore, a very simple and efilective manually controlled means isprovided for connecting the motor to the tool feed screw for moving the tool either toward or away from its work, as desired.

By adjustably mounting the base on the truck a greater adjustment with respect to the work is obtained. This is very desirable where the apparatus is mounted on a truck running on a track, for it enables the operator to move the apparatus to the point required where it would be difficult to do so were the base not adjustable. This is especially true in operating in a restricted space.

A novel means is also employed for connecting the motor to the truck wheels which will permit the motor to be moved with the pulsator and tool along the truck without disengaging the motor from the truck driving means.

It is evident that slight changes might be resorted to in the form, construction and arrangement of the several parts without departing from the spirit and scope of my invention; hence I do not wish to limit myself strictly to the structure herein set forth, but

What I claim is 1. A percussive tool, its feed screw, a pulsator for operating the tool, the pulsator shaft, and intermediate shaft geared to the feed screw and manually controlled E. S. APGAR, H. C, EIsBnRG.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

' Washington, 19.0. 

